Has anybody successfully used the DAQmx 8 C handshaking functions on the PCI-6503 or PCI-DIO-96? When I try the handshaking functions to read data I see the assertion of STB* by my circuit followed by the assertion of IBF by the NI board. After that sequence, the INTR signal should go HIGH indicating that the assertion of a PCI interrupt. When the interrupt is serviced and the buffer is read by the CPU the IBF signal should go LOW again. I never see the INTR signal go HIGH and the IBF go LOW. Finally, the handshaking function times out. Any ideas?
